Good day,
I created two constructor methods for a generic function. One is for the
default empty constructor and the other is a constructor when any one or more
parameters is specified by the user. The method signatures are:
1. c("missing", "missing", "missing", "missing", "missing", "missing",
"missing", "missing"),
2. c("characterOrMissing", "numericOrMissing", "numericOrMissing",
"numericOrMissing", "numericOrMissing", "characterOrMissing",
"BiocParallelParamOrMissing", "numericOrMissing")
The class unions are defined as you might expect.
setClassUnion("characterOrMissing", c("character", "missing"))
setClassUnion("numericOrMissing", c("numeric", "missing"))
setClassUnion("BiocParallelParamOrMissing", c("BiocParallelParam", "missing"))
The first method works as expected:
> system.time(CrossValParams())
user system elapsed
0.165 0.000 0.165
The second takes over ten minutes and constantly uses 100% CPU usage, according
to top.
> system.time(CrossValParams("Leave-k-Out", leave = 2))
user system elapsed
760.018 15.093 775.090
Strangely, if I rerun this code again, it works quickly the second time.
> system.time(CrossValParams("Leave-k-Out", leave = 2))
user system elapsed
0.145 0.000 0.145
I haven't been able to come up with a minimal reproducile example of the issue.
How can this be done consistently and efficiently?
--------------------------------------
Dario Strbenac
University of Sydney
Camperdown NSW 2050
Australia
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